Tool-holder.



PATENTED MAY 8, 1904.

C. A. EDLUND.

TOOL HOLDER.

APPLICATION FILED MAY 27, 1903.

2 SHEETS-SHEET 1.

N0 MODEL.

V PATENTED MA'Y3,19O4. G! A! TOOL HOLDER.

APPLICATION FILED MAY 27, 1903.

2 SHEETS-SHEET 2.

N0 MODEL.

Witt Imam 64M. @fiwy. 8 30 mm UNITED STATES Patented May 3, 1904.

PATENT OEEicE.

OLAUS A. EDLUND, OF PROVIDENCE, RHODE ISLAND, ASSIIGNOR OF ONE- HALF TO JOHN O. ANDERSON, OF PROVIDENCE, RHODE ISLAND.

TOOL-HOLDER.

SPECIFICATION forming part of Letters Patent N 0. 759,083, dated May 3, 1904.

Application filed May 27, 1908. Serial No. 158,930. (No model.)

invented certain new and useful Improvements in Tool-Holders; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the acco1npanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to tool-holders of the class designed to be connected to and operated on lathes, planers, and the like for both wood and iron working.

The device is designed to be universally adj ustable and easily set and secured in any desired position.

The invention is fully described in this specification and illustrated in the accompanying drawings.

Figure 1 is a central longitudinal sectional view showing some of the parts in full. Fig. 2 is an end elevation of the device, showing the crosshead partly broken away. Fig. 3 is a sectional view of a portion of the head on line 3 3 of Fig. 1.

Referring to the drawings, the adjustable tool-post has a head A, into which is threaded the set-screw a. This head. is pivotally hung at a a by two ears. which straddle the forked post A and may be swung oil at any angle so as to engage the tool B (see Fig. l) at right angles when the cutting edge of said tool is desired to be raised or lowered. B is the key on which the tool rests, the lower surface of which is curved, so as to accommodate itself to the tool when set on an angle. O is the ring which surrounds the post and has a concave surface to receive the curved portion of the key B. his tool-post is set ina groove in the usual way onto the sliding table D, which table has a hollow center and is held in dovetailed waysD D and may be adjusted v longitudinallyby theadjusting-screw (Z. This screw is held to rotate in the ear (1 in the table and is threaded through the ear e in the table E and squared on its outer end to receive a wrench or handle. The rotatable table E is hung at its center by the bolt F to the lathe cross-head G, said bolt being keyed atf to-the plate to keep it from turning therein and has its lower end threaded. Onto this threaded portion a worm-wheel R is screwed plate and holding it in any desired position. The woru1-wheel nut is actuated by the screw '2', which passes through the cross-head and is threaded at its middle portion to engage and operate the nut R to set up or release the rotatable plate E. The cross-head slides in the dovetailed ways on the usual lathe-carriage S.

The operation of my invention is further explained as follows: It is found very desirable in the practical operation of machines of this character, particularly those used for working metal, to have a universally-adjustable toolpost, one in which the tool may be adjusted and fixed in any desired position. In my improved construction I have accomplished this object in a very simple and practical manner, by the use of which I am able to set a tool in the post and then adjust and set the holder in any position around in a circle and on either side of the work without disturbing the tool after it is once set. My method of setting the head A off at any angle and allowing the set screw it to engage the tool at right angles assures the holding of the tool as firmly as when set square to the bed. v

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is----- 1. Atool-post having a head pivotally hung to be set at any angle relative to the bed of the machine to which it maybe attached, a rotatable plate, a longitudinally-movable plate on which said tool-post is set, said movable plate being inovably held in guides or ways on said rotatable plate, means for setting up said rotatable plate, substantially as described.

2. A tool-post base having upwardly-extending cars, a head on said base with depending ears pivoted to said upwardly-extending cars, a tool-post, a longitudinally movable plate in which said tool-post is set, a rotatable plate on which said movable plate is held to move in guides or ways, means for adjusting to act as a nut for setting up this rotatable.

said movable plates longitudinally and means for setting up and releasing said rotatable plate, substantially as described.

3. In a universally-adjustable tool-post, a post for holding the tool made in two parts and pivotally joined together, a binding-screw in the head of said post, a longitudinally-movable plate in which said tool-post is set, a rotatable plate on which said movable plate is held to move in guides or Ways, a screw for adjusting said movable plate longitudinally, a center bolt on which said rotatable plate may turn, a nut on said center bolt for setting up and releasing said rotatable plate, substantially as described.

4. A tool-post having a head pivotally hung by its depending ears to be set at any angle relative to the bed of the machine to which it may be attached, a binding-screw in the head of said post, a longitudinally-movable plate in which said tool-post is set, a rotatable plate on which said movable plate is held to move in guides or ways, a screw for adjusting said movable plate, a center bolt on which said rotatable plate may turn, a nut threaded on said bolt, an adjusting-screw engaging said nut by which said rotatable plate may be set up or released, substantially as described.

In testimony whereof I have hereunto set my hand this 23d day of May, A. D. 1903.

CLAUS A. EDLUND. In presence of- HOWARD E. BARLOW, JOHN ERIKSON. 

